Driving control method and system of fuel cell system

a fuel cell and control method technology, applied in the direction of battery/fuel cell control arrangement, electrochemical generators, battery/fuel cell control, etc., can solve the problems of negative influence on the fuel efficiency and durability of the fuel cell, and the need for maintenance of appropriate anode pressure, so as to improve the reacceleration performance reduce the loss of fuel efficiency of the fuel cell vehicle, and improve the fuel cell. the effect of durability

Active Publication Date: 2017-09-19
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The method improves fuel cell durability, reduces fuel efficiency losses, and enhances reacceleration performance by effectively managing fuel cell stop and restart processes, thereby maintaining optimal anode pressure and preventing hydrogen crossover.

Problems solved by technology

The greater the anode pressure (e.g., hydrogen pressure), the greater the increase of the amount of hydrogen crossover and the hydrogen crossover may have a negative influence on the fuel efficiency and the durability of the fuel cell, and thus maintenance of appropriate anode pressure is required.

Method used

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  • Driving control method and system of fuel cell system
  • Driving control method and system of fuel cell system
  • Driving control method and system of fuel cell system

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Embodiment Construction

[0025]It is understood that the term “vehicle” or “vehicular” or other similar term as used herein is inclusive of motor vehicles in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, for example both gasoline-powered and electric-powered vehicles.

[0026]Although exemplary embodiment is described as using a plurality of units to perform the exemplary process, it is understood that the exemplary processes may also be performed by one or plurality of modules. Additionally, it is understood that the term controller / control unit refers to a hardware devi...

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Abstract

A driving control method and system of a fuel cell system are provided. The method includes determining, by a controller, a dry state of a fuel cell stack and stopping an air blower, which supplies air to the fuel cell stack, using different processes based on whether the fuel cell stack is in the dry state. Accordingly, the time for which an open circuit voltage (OCV) is maintained is reduced and durability of the fuel cell is improved by preventing dry-out of the fuel cell stack.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application claims priority of Korean Patent Application Number 10-2013-0147275 filed on Nov. 29, 2013, the entire contents of which is incorporated herein for all purposes by this reference.BACKGROUND[0002](a) Technical Field[0003]The present invention relates to a driving control method and system of a fuel cell system, and more particularly to a driving control method and system of a fuel cell system that improve the drivability of a vehicle and durability of a fuel cell.[0004](b) Background Art[0005]Fuel cell vehicles include a fuel cell stack composed of a plurality of fuel cells stacked and used as a power source, a fuel supply system that supplies hydrogen (e.g., fuel) to the fuel cell stack, an air supply system that supplies oxygen that is an oxidizer for an electrochemical reaction, and a water / heat management system that adjusts the temperature of the fuel cell stack. The fuel supply system depressurizes compressed h...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): H01M8/04H01M8/04223H01M8/04089H01M16/00H01M8/04858H01M8/0438B60L11/18B60L7/10B60L1/00H01M8/04492H01M8/04537H01M8/04664H01M8/04746H01M8/04992
CPCH01M8/0488B60L1/003B60L7/10B60L11/1887B60L11/1892H01M8/04089H01M8/04223H01M8/04395H01M8/04529H01M8/04619H01M8/04679H01M8/04753H01M16/006B60L2240/12B60L2240/80H01M8/04626H01M8/04992H01M2220/20H01M2250/20Y02T90/32Y02T90/34H01M8/04228H01M8/2457H01M8/04303B60L58/40B60L58/33Y02T90/40Y02T10/70Y02E60/50Y02E60/10H01M8/04231H01M8/04798
InventorKWON, SANG UK
OwnerHYUNDAI MOTOR CO LTD